Question

Slove 3(n-4)+2(4n-5)=(n+2)​

Answer 1

n is 2.4

Explanation:

`3(n - 4) + 2(4n - 5) = (n + 2)`

open the brackets:

`(3n - 12) + (8n - 10) = (n + 2)`

collect like terms together:

`3n + 8n - n = 2 + 12 + 10`

factorise out n :

`n(3 + 8 - 1) = 24 \\ 10n = 24`

divide all sides by 10 :

`(10n)/(10) = (24)/(10) \\ \\ n = 2.4`